Interesting Duct Tape Fact: Duct was originally invented for the US Army to seal ammunition boxes from wetness in WWII.
It was called DUCK TAPE for it's waterproofing properties. ie. "Like water off a duck's back"
Sheet metal ventilation ducts were not even widespread to be considered.

"Mr Smith's buddy Charlie had an answer for that, too: there could have been a "small pressurization leak" (something Mr Smith explains is mostly a "nuisance" problem), or some of the tape could have "peeled away", creating an unpleasant noise. Either way, there was never any real danger. The tape wasn't actually holding the window in or anything like that; the actual pressure seal is further inside the airframe."

--I love tap dancing.....But not during a debate.
Such dissembling arguments could make Qaadafi into a wise, benevolent leader who had foresight and therefore was deeply regarded and loved by his people.

Unlike Mr Smith, the pilots must have decided not to put his assertions regarding the durability of the speed tape to the test; I don't blame them either, as I too find it inconvenient to think of an imminent inescapable future when I'd be fererred to as "charred remains".

The fact that Ryanair has made a name for itself as a low-cost, no frills carrier and charges a fee for absolutely everything (including payment), one of the adverse side effects of this name could be that they even repair their airplanes at a low-cost...

It's worth pointing out that Ryanair's generally thought of as a safe airline. It's got a very young and completely uniform fleet (all 737-800s) so the maintenance people know the planes they're working with. Apart from the air of seething hate surrounding everything Michael O'Leary says, the fact that you're completely nickel and dimed every time you fly with them, that you're flogged useless lottery tickets and smokeless cigarettes throughout the flight, that they take advantage of local government funds to open up new services, having tax-avoiding pilot contracts with forced furloughs for them, that everyone believes their nastiness is proof that they're the cheapest airline that exists and that every time the chairman makes an absurd business suggestion every newspaper falls over itself to report it thus halving their advertising costs, I have no qualms at all about flying Ryanair.

Honestly, every bit of informed comment I've ever seen suggests that their frighteningly high level of efficiency is used to maintain their planes properly just as much as it's used to squeeze every last drop out of their customers and suppliers.

Of course, as far as windscreens coming out is concerned, there is a precedent: British Airways did it in 1990, flying out of Birmingham in a BAC 1-11.